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Wednesday, December 27, 2017

R's Day at Laguna Seca - 2017 - Car Prep . Bluecar


#bluecar R32 GT-R
So at R's Day last year, I blew up the #bluecar.  It was ticking a little before I took it, which is why it rode up, and back in a trailer with my favorite Emergency Hooker. Out on track, bouncing it off the rev limiter in the rain, it spun a rod bearing.  That took out the crank.  Replaced the crank and rods.





Wakita over at Blast Racing rebuilt the RB26 for me.  Inside it had 87 mm Tomei pistons, Tomei cams, stock crank (that was replaced with another stock crank).It is back together, and getting some break in miles now.

Radiator and cooling : Swapped to an aluminum radiator, and silicone hoses

Tires and Wheels.  Used the BBS 18 x 10 +20 wheels, and Bridgestone RE-71 tires. These were used take offs from the R-Tuned Van.



Brakes. We ran the Hawk DTC60 pads in the car for R's Day, but it was sold cold and wet, we never really got to use them. They were giving me some shudder. Two pad compounds mixing is not normally a good thing. I never got around to cleaning up the pads or rotors. Such is life. Shudder under braking.



Tune and Engine.  This car has a set of HKS turbos on it, ARC twin entry intercooler. Hard HKS inlet piping. The car currently has Z32 MAF. The tune on this car is really good.

So from here, lets get to trying to improve it.  The plan is to swap the Z32 meters which are 80 mm, to a stock size 65 mm MAF housing with the Nissan blade style mass air flow sensors.  This will then parallel our setup for our NISMO #500.  Never made it around to doing this, but the parts are on the way.

Supertec R35 coil conversion kit for an RB26. 


Ignition Coils: Swapped the stock ignition coils for R35 coils. Why? Well the newer coils are just that newer. They have been used in R35 GT-R up above 2000hp, so they should work out well on a 500 hp RB26.

Bluecar on the lift with the R34 wheels, and Toyo R888. Takeshi doing the shuffle on the side. 


Transmission. We took the Getrag out, and sold it to one of our friends. So the car is back to an OEM 5 Speed trans with a NISMO Coppermix twin plate clutch. The slave cylinder was replaced.

Dirty, but back on the BBS LM's. 


Fluids : Mentioning fluids is like mentioning religion to most hardcore car guys. They have their oil god they believe in, everyone else's oil god is fake.  This car has the trans out of NISMO #500. So it had Redline Shockproof Light and Heavy mix.  Diffs had fluid in them. Transfer had fluid in it. Engine oil was changed about 100 miles into the break in. Royal Purple 10-30 was put in. K&N HP 2008 oil filter attached to the Greddy remote oil locator and oil cooler.

Headed down the Corkscrew at Mazda Raceway Laguna Seca

Suspension. Suspension wise, the car is on Buddy Club coil overs, with Swift Springs. Has NISMO, and other parts in the suspension, so looks capable. Would have liked to corner balance, and string the car, but as we said in the start, only so many hours in the day. The NISMO strut tower brace isn't installed in the pics, but it is on for the event. Went full soft on the rear sway bar. The car would still step out a bit under throttle.

Alignment:  We did a quick alignment on the car. The steering wheel was off a bit. With a set of borrowed Smart Strings from DG-Spec, we set a little toe out in the front, and close to 0 toe in the rear. Did not measure camber or caster.

Exhaust: Mazda Raceway Laguna Seca has noise restrictions. Out of the 26 or so cars in the first session, only 6 cars were UNDER the 90 dB limit. So we all had to pay attention to the noise limits.

Japanese bolt together roll cage got removed. It was yellow, faded, and we didn't think it did much.

R's Day 2017
Overall car was good and fun. Only running about 0.65 kg/cm2 (~9 psi) boost.  It has almost convinced us to keep it as a toy. Good color, nice wheels. Good brakes. Decent suspension. It isn't a bad place to start.


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